Special Invizimals
Hold Select and press Up, Right, Down, Left at the world map. A small "Big Secret" location will appear. Go there and select "Capture Invizimals". There are four special Invizimals that require special images to be attracted.

Some Game Trainers are sometimes reported to be a Virus or Trojan,
the most common is a keylogger called HotKeysHook or the file
has been packed/protected with VMProtect or Themida and
is recognized as Win32/Packed.VMProtect or Win32/Packed.Themida.
In ALL cases this is a FALSE ALARM as NONE
of the Game Trainers @ GCW contain known malicious code! More info in
the PC
Games FAQ!